Icom IC-F5121D Service Manual page 20

6-3 TRANSMIT ADJUSTMENTS (continued)
1) Select an adjustment item using [↑]/[↓] on the PC's keyboard.
2) Set or modify the adjustment value as specifi ed using [←]/[→] on the PC's keyboard, then push [ENTER].
TRANSCEIVER'S
ADJUSTMENT
DIGITAL 1 • Channel
DEVIATION • Transmitting
(Band Low)
2
(Band Center) 3 • Channel
• Transmitting
(Band High) 4 • Channel
• Transmitting
CTCSS 1 • Channel
DEVIATION • Transmitting
DTCS 1 • Channel
DEVIATION • Transmitting
2/5 TONE, 1 • Channel
DTMF • Transmitting
DEVIATION
*: [EUR] only
CONDITION
: 1-21 1) Set the TX Mode to "16" on the "Adjust
Utility" screen.
2) Push [ENTER] on the PC's keyboard,
to enter the digital deviation adjustment
mode.
• Connect a modulation analyzer to
the antenna connector through an
attenuator, and set it as;
: 1-22
HPF
LPF
: 1-23
De-emphasis : OFF
Detector
• Push [ENTER] on the PC's keyboard,
to store the value and quit the digital
deviation adjustment mode.
: 1-24 1) Set the TX Mode to "3" on the "Adjust
Utility" screen.
2) Connect a modulation analyzer to
the antenna connector through an
attenuator, and set it as described in
the "DIGITAL DEVIATION" above.
: 1-25 1) Set the TX Mode to "4" on the "Adjust
Utility" screen.
2) Connect a modulation analyzer to
the antenna connector through an
attenuator, and set it as described in
the "DIGITAL DEVIATION" above.
: 1-26 1) Set the TX Mode to "5" on the "Adjust
Utility" screen.
2) Connect a modulation analyzer to
the antenna connector through an
attenuator, and set it as described in
the "DIGITAL DEVIATION" above.
OPERATION
: OFF
: 20 kHz
: (P–P)/2
6 - 6
ADJUSTMENT
VALUE
ITEM
[MOD D Start] –
±1.35 to ±1.39
[MOD D L]
kHz
[MOD D C]
[MOD D H]
[MOD D Start] –
±0.65 to ±0.75
kHz
[CTCSS]
[DTCS]
±1.45 to ±1.55
kHz
[S.Tone]